Improvement in coal-stoves



G. H.MAGERSUPPE Coal Stove.

Patented Sept. I5, 1863.

IW lll Ill Il! HMI UNITED STATES PATENT OFFICE.

GEORG H. MAGERSUPPE, OF NEW YORK, N. Y.

IMPROVEMENT IN COAL-STOVES.

Specification forming part of Letters Patent No. 39,939, dated September 15, 1863.

To all whom t may concern:

Be it known that I, GEORG H. MAG-Ea- SUPPE, of the city, county, and State of New York, have invented a new and useful Improvement in Stoves; and I hereby declare the `following to be a full, clear, and exact description thereof, reference being had to the annexed drawings, making part of this specification, in which- Figure l is a front view of the stove; Fig. 2, a vertical section parallel with the front; Fig. 3, a partial vertical section parallel with the side; Fig. 4, a full vertical section parallel with the side; Fig. 5, a horizontal view from below, with the grate opened; Fig. 6, a horizontal view from below with the grate closed; Fig. 7, a horizontal view from above, with both covers removed Fig. 8, a horizontal view from above, with both covers on.

The same letters mark the same parts in all figures.

The nature of my invention consists, rst, in providing a stove with an inner vertical cylinder parallel with the mantle of the stove, which inner cylinder rotates on a vertical axis; and, second, in a peculiar construction of the grate, all as hereinafter described.

In the annexed drawings, A represents the outside or mantel of the stove; B, the inside or inner vertical cylinder; O, the axis thereof; D, the ash-box; E, the handle of the grate; e

Y e e e, the bars of the movable bottom; F, the

smoke-pipe; G, a branch smokepipe; H, the outer cover; I, the cover of the inner cylinder; Im, the bottom of the outer cylinder, which bottom is permanent and forms part of the frame thereof; n, the movable bottom of the outer cylinder, which is attached to the handle E, by the pulling ont of which the 'movable bottom will cover the grate-bars.

o o o o are vertical pins attached to the movable bottom n in such a manner that every one ts between the opening of the grate bars e e e e.

The movable cylinder B has no cover on the bottom, and reaches'near to the surface of the permanent bottom m-say about four inches apart, through which intervals the coal-dust, clinkers, ashes, Ste-are pressing down.

s is the lower part of the movable cylinder.v

This stove is used in the following manner: The movable bottom n is placed in position indicated in Figs. 5 and 3. Then paper'and wood or similar inflammables are placed between the bottom m and the lower end, s, of the movable cylinder, then coal-dust or refuse of coal, such as can not be used in any other stove, is placed in the inner cylinder, B, and the re is then ignited in the usual manner, when the ames will ascend in the space between the outer cylinder, A, and the inner cylinder, B. The inner cylinder, B, may be lled with the said coal-dust or refuse of coal, and as soon as part of it is consumed by the fire the pressure from above will cause the same to be replaced bythe other coal-dust or refuse, while the ashes will fall through the small spaces left between the grate-bars. These spaces (in which the pins o o o o are fitting) are narrow, so that the coaldust and refuse may not pass through the same unconsumed, and the pins o o o o serve the purpose of keeping these spaces open whenever the same should be choked, at the same time moving the handle E toward the interior of the stove, as in Fig. 3, or out of it, as in Fig. 4, served to open or close the grate partly or entirely, and thereby to regulate the draft at pleasure.

' The outer cylinder, A, is made of cast-iron, theinner cylinder, B, of sheet-iron. The inner cylinder is movable on its axis, so that when required the coal-dust occupying the rear part thereof may be exposed to the flames or tire more readily, as the grates occupy the front part of the stove merely and about one-halt' of the surface. This construction of the grate is required for the double purpose of increasing the draft and of compelling the coal-dustl to run down in an oblique direction (indicatad by the arrow in Fig. 4.) so as to prevent its falling through the spaces of the grate-bars unconsumed, which might be the case if the pressure was in a vertical direction.

This stove is intended to burn coal-dust and refuse, such as is accumulated in coal-yards, and which is deemed generally to be useless for stoves or for any purpose. The stove is alsointended to be one which requires the re to be lighted about once during the cold season, provided that the same is filled once during each day, as it will then supply itself with the amount of fuel necessary for its maintenance.

The advantages of this stove consist in the great cheapness of the fuel required therein, as the coal-dust, clinkers, and refuse arc deemed useless, and in the fact of the long and continued duration of the re after the same is once ignited.

The smoke-pipes F and G and the covers H and I are constructed in the usual manner.

Having thus described my invention in such clear and full terms'as to enable others skilled in the art to make and use the same, What I claim as new, and desire to secure by Letters Patent, in a stove for burning dust and refuse coal, is i The movable bottom fn, with its pins o 0 o o, grate e, and handle E, in combination with the inner cylinder, B, when constructed and operating substantially as described.

Witnesses: GEORG H. MAGERSUPPE.

GHAs. WEHLE, H. WEIILE. 

